<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="信息描述">
        <el-tag type="info">excel模版说明</el-tag>
        <el-tag>
          <i class="el-icon-download" />
          <a
            :href="
              OSS_PATH +
              '/default/subjectExcelDemo.xlsx'
            "
            >点击下载模版</a
          >
        </el-tag>
      </el-form-item>

      <el-form-item label="选择Excel">
        <el-upload
          ref="upload"
          :auto-upload="false"
          :on-success="fileUploadSuccess"
          :on-error="fileUploadError"
          :disabled="importBtnDisabled"
          :limit="1"
          :action="BASE_API + '/eduservice/subject/upload/save'"
          name="file"
          accept="application/vnd.ms-excel"
        >
          <el-button slot="trigger" size="small" type="primary"
            >选取文件</el-button
          >
          <el-button
            :loading="loading"
            style="margin-left: 10px"
            size="small"
            type="success"
            @click="submitUpload"
            >上传至服务器</el-button
          >
        </el-upload>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>


export default {

  
    data(){
        return{

          OSS_PATH: process.env.OSS_PATH,
          BASE_API:process.env.BASE_API,
          importBtnDisabled:false,
          fileUploadBtnText:"上传至服务器",
          loading:false
        }
    },
    methods:{
      fileUploadError(response){
        this.loading = false
        this.$message({
        type: 'error',
        message: "上传失败！"
        })
        this.fileUploadBtnText = '上传成功！'
      },
      fileUploadSuccess(response){
        this.loading = false
        this.$message({
        type: 'success',
        message: "上传成功！"
        })
        this.fileUploadBtnText = '上传成功！'
      },
      submitUpload(){
        this.fileUploadBtnText = '正在上传'
        this.importBtnDisabled = true
        this.loading = true
        this.$refs.upload.submit()
      }


    },
    watch: {
    
  }


}
</script>